camel-through-the-eye-of-a-needle

Getting George to wake up before 7 o'clock is harder than getting a camel through the eye of a needle.

Origin

With reference to the Christian Bible, Luke 18.25: It is easier, in fact, for a camel to get through the eye of a needle than for a rich man to get into the kingdom of God.” (NWT) Repeated in Mat. 19.24 and Mark 10.25